During a joint operation between International Rescue and the Global Defence Force, a series of mishaps nearly ends in disaster. In the wake of the botched mission, Colonel Martin Janus takes over the GDF...

International Rescue attempt their most difficult mission ever while defending Tracy Island from a dangerous assault.

Gordon ventures deep into the Marianas trench to rescue a survey team, and ends up discovering an early International Rescue prototype vehicle once flown by Jeff Tracy. Gordon takes Thunderbird 4 down to save the crew and get a better look at the prototype. But the survey ship, designed by The Mechanic, transforms and wrecks Thunderbird 4. Gordon is forced to abandon ship and seek refuge on his dad’s TV-21 plane. To save the survey crew, Gordon powers up the plane and manages to take it up to the surface.

When seismic activity near the coast of Greece reveals the lost city of Atlantis, two scientists venture below the depths to explore the area. But when their submarine becomes stuck, International Rescue are called out to assist.

Lady Penelope and Parker must deal with a malfunctioning orbital power platform whilst Scott, Virgil and Gordon try to rescue the crew of a plane damaged by the platform's output.

Virgil and Grandma are out resupplying Thunderbird 2 when a distress call comes in. A mine is in danger of collapsing in the desert. When Virgil goes to help the workers, he gets caught in a massive sandstorm and it is up to Grandma to save the day.

Lady Penelope brings John as her guest to a charity event while Gordon and Alan take the watch aboard Thunderbird 5.

An emergency space docking goes wrong and the core of the orbiting Spacehub transit terminal goes into meltdown. A young traffic controller named Conrad is trapped inside and Alan is unable to reach him. With Thunderbird 3 being used to keep Conrad alive International Rescue's only hope is to modify Thunderbird 2 for space flight in order to transport a new cooling system to the hub.

Lady Penelope, Parker and Kayo arrive on the scene of a massive semi-submersible ocean oil rig to decommission the polluting relic, but supervisor Malloy has other plans.

When the first run of an inventor's newly-constructed hyperloop begins to malfunction, Scott must try to find a way to slow down the fast-moving ride.

The Gray and Houseman mining operation now includes planet Mercury - it uses a moving vehicle that stays on the 'dark side' of the planet.

The Chaos Crew interrupt the pleasant and quite life of Ned Tedford to steal the orchard growth serum inside the highly secure Global Seed Vault.

When gas from a dangerous hydromethane reserve begins to leak, Virgil and Gordon team up with a retired well-capping specialist to plug the leak. Gordon soon discovers the Chaos Crew syphoning off fuel - and moves to stop them.

Kayo, with the help of a futuristic game creator that only talks like a wizard, must play through a futuristic holo-game called Cavern Quest to stop The Chaos Crew from stealing a powerful piece of technology.

IR receives a distress call from the Calypso, a space vessel returning from a long mission. Scott and Virgil get aboard the plummeting ship and locate the disoriented crew along with an old robot named Braman, who sent the original distress call.

Through the use of archive footage, Brains informs the team of a discovery, but in order to gather more information, our heroes split into groups and search for an escape pod missing since Jeff Tracy's crash.

When a popular vlogger gets trapped during an avalanche, International Rescue must find a way to carefully dig him out.

In order to build a T-drive engine for the Zero-X, Brains needs help from the Mechanic. The trouble is, the Mechanic is locked inside a space prison known as the Hex.

Two Rescue Scouts get locked inside an antiquated crablogger vehicle in the middle of a forest fire. The Tracys respond, and assist both on land and in the sky to rescue the scouts and put out the fires.

International Rescue attempt their most difficult mission ever while defending Tracy Island from a dangerous assault.

After the Mechanic flees the scene with the TV-21, Scott is in hot pursuit. But, when the villain steals some volatile iridium, Brains must make drastic alterations to Thunderbird 3 to save the day.

A comet brought into the Earth's orbit takes a wrong turn. International Rescue must intervene to stop it from colliding with the planet - and the space station between them.

International Rescue race to prevent Francois Lemaire's pleasure balloon from crashing into New Zealand's Southern Alps.

The team travels to Langstrom Fischler's newest invention to stop a hive of malfunctioning weather drones.

A mysterious tunnelling vehicle leaves a worker trapped in its wake and it is up to Gordon and Virgil to free him. Meanwhile, Parker and Penelope track down the digger and discover an old foe at the controls.